need help with hw! its a drawing math kinda thing and its not easy to do on screen, so if anyone has d1$c0rd or smthing else that would be fine

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.

Similarly fie each expression 18,19,20